Accelerating population transfer in a transmon qutrit via Shortcuts to adiabaticity

TL;DR

This paper introduces a method to accelerate population transfer in a transmon qutrit using shortcuts to adiabaticity, enabling robust and efficient quantum state manipulation suitable for quantum information processing.

Contribution

The paper proposes a novel nonadiabatic evolution approach to speed up population transfer in a transmon qutrit, reducing pulse area and enhancing robustness.

Findings

Achieved robust population transfer with low pulse area (1.9π).

Demonstrated acceleration without increasing pulse intensity.

Method is compatible with modern pulse shaping technology.

Abstract

In this paper, a method to accelerate population transfer by designing nonadiabatic evolution paths is proposed. We apply the method to realize robust and accelerated population transfer with a transmon qutrit. By numerical simulation, we show that this method allows a robust population transfer between the ground states in a $\Lambda$ system. Moreover, the total pulse area for the population transfer is low as 1.9$\pi$ that verifies the evolution is accelerated without increasing the pulse intensity. Therefore, the method is easily implementable based on the modern pulse shaper technology and it provides selectable schemes with interesting applications in quantum information processing.